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About Castle Building Group
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COBALT DRILL BIT SETS
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57 and Above (4)
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Vulcan 492470OR Drill Bit Set, 17-Piece, M35 Steel with 5% Cobalt
Our Price:
$54.99
DeWALT DWA1240/DW1263 Drill Bit Set, Industrial, 14-Piece, Cobalt Steel, Ferrous Oxide
Our Price:
$57.99
IRWIN 316015 Drill Bit Set, General-Purpose, Cobalt HSS, Black Oxide
Our Price:
$59.99
Drill Bit Set includes 17 pieces, 1/16 - 3/8 in. 3-Flat shank, M35 steel with 5% polyvinyl butyral cobalt. Extra thick drill core adds further rigidity and strength.
The DeWALT? 14-piece Pilot Point? industrial cobalt drill bit set is designed for maximum speed and life in stainless steel and other hard metals. These bits features a pilot point and split point tip design that starts on contact and helping to reduce bit-walking for control. These bits are commonly used for drilling into stainless steel, angle iron, I-beams and other similar metals.
Constructed of M-42 8% cobalt high-speed steel for super abrasive resistance in tough metals. Bits have a 135 deg split point which reduces feed pressure for easier penetration. Includes (2) 1/16 in, (2) 5/64 in, 3/32 in, (2) 7/64 in, 1/8 in, (2) 9/64 in, 5/32 in, 3/16 in, 7/32 in, 1/4 in, 5/16 in, 3/8 in and (1) rubber-sided case with sliding latch for added security.
Vulcan 203380OR Metal Index Drill Bit Set, 21-Piece, M35 Steel with 5% Cobalt, Coffee
Our Price:
$59.99
Milwaukee 48-89-2331 Jobber Length Drill Bit Set, 15-Piece, Cobalt Steel
Our Price:
$77.99
Drill Bit Set includes 21 pieces, 1/16 - 3/8 in . All sizes 3/16 in and larger have 3 flats on the shank so that the drill chuck gets a better grip on the drill bit.
Milwaukee?? cobalt red helix drill bits are engineered for extreme durability and long life in hard metal applications. Designed with a variable helix that includes an aggressive 35 deg helix angle which ends at 15 deg, the cobalt bits with red helix provide rapid chip removal limiting heat build-up to stay sharper longer. The 135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Ideal for tough applications and provide Up to 15X life vs. black oxide drill bits but can be used in all twist drilling applications.
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